Could Headache Be The Symptom Of Pregnancy?

Hi I'm sure you get this question 8 million times a day. I'm concered I might be pregnant and plan on getting a home test tommorw but I can't sleep right now due to nerves so I would like an opion. I have been getting more headache then usual but not everyday. I have been peeing WAY more. And eating a lot of ice cream and cookie dough. Now I don't have periods due to my birth control so I can't answer that question but about 6 weeks ago I tryed to take the plan B pill and didn't keep it down after the first 10 minutes. Should I be nervous?